"I'm a special drunkard... I drink too much"

Bon Scott's quote is a humorous way of revealing his battles with alcohol. He is acknowledging that he drinks excessive and that it is a problem. He is likewise suggesting that he is not like other people who consume excessive, however rather he is a special sort of alcoholic. This might be interpreted as a way of him trying to play down his situation and take ownership of it. It might likewise be viewed as a method of him attempting to deal with his drinking issue by making a joke out of it. It is a method of him trying to take control of his circumstance and not let it manage him. Eventually, it is a method of him attempting to understand his drinking issue and come to terms with it.